Sony STR-K995 Service Manual page 42

STR-K995
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• IC Block Diagrams
– DIGITAL Board –
IC1301 LC89056W-E
48 47 46
SYSTEM
RESET
DISEL 1
SPDIF 2
DINO
3
INPUT
DINI 4
CIRCUIT
DIN2 5
D.GND 6
DVDD 7
R 8
PLL
VIN 9
LPF 10
AVDD 11
AGND 12
TE
L 13942296513
IC1452 PCM1602APT
37
RST
38
SCKI
39
SCKO
40
BCK
41
LRCK
42
TEST
43
VDD
44
DGND
45
DATA1
46
DATA2
47
DATA3
48
ZEROA
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42
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45 44 43 42 41 40 39 38 37
MODE
MICROCOMPUTER
SELECT
INTERFACE
LOCK
DATA
DETECT
DEMODULATOR
CLOCK
TIMING
13 14 15 16 17 18 19 20 21 22
36 35 34 33 32 31 30
FUNCTION
CONTROL
INTERFACE
SYSTEM
CLOCK
MANAGER
4X/8X ENHANCED
OVER SAMPLING
SERIAL
DIGITAL
INPUT
FILTER
INTERFACE
WITH
FUNCTION MOJULE
CONTROLLER
ZERO DETECT
1 2 3 4 5 6 7
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y
i
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8
36 DI
DO
35
34 ERROR
33 BPSYNC
32 LOCK
31 DGND
SAMPLING
FREQUENCY
30 DVDD
29 VF/P3/C3
C BIT 28 F2/P2/C2
DETECT
27 F1/P1/C1
26 F0/P0/C0
PA/PB
DETECT
25 CSFLAG
23 24
Q Q
3 6 7 1 3
29 28 27 26 25
DAC LPF
MULTI-
DAC LPF
LEVEL
DELTA-
SIGMA
DAC LPF
DAC LPF
DAC LPF
DAC LPF
8 9 10
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2 9 9 4 2 8
IC1302 TC74ACT153F (EL)
STROBE 1
STROBE/
DECODER
B
2
1C3 3
1C2
4
1C1 5
1C0
6
1Y 7
GND 8
1 5 0 5 8 2 9 9 4
24
VCC3
23
AGND3
22
VCC4
21
AGND4
20
VOUT8
19
AGND6
18
VCC5
17
AGND5
16 VOUT7
15 VCOM
14 VOUT1
13 VOUT2
11 12
m
co
9 9
VCC
16
15 STROBE
A
14
13 SC3
SC2
12
11 2C1
2C0
10
9 2Y
2 8 9 9